java实现替换word文档中的以#开始#结尾的字段

Java中可以使用Apache POI库来操作Word文档。具体实现步骤如下：

1. 导入Apache POI库。

2. 读取需要替换的Word文档。

FileInputStream file = new FileInputStream("原始文档.docx");
XWPFDocument doc = new XWPFDocument(file);

3. 遍历Word文档中的所有段落和表格，查找需要替换的字段，并进行替换。

for (XWPFParagraph para : doc.getParagraphs()) {
    List<XWPFRun> runs = para.getRuns();
    for (int i = 0; i < runs.size(); i++) {
        XWPFRun run = runs.get(i);
        String text = run.getText(0);
        if (text != null && text.startsWith("#") && text.endsWith("#")) {
            // 进行替换
            run.setText("替换后的文本", 0);
        }
    }
}

for (XWPFTable table : doc.getTables()) {
    for (XWPFTableRow row : table.getRows()) {
        for (XWPFTableCell cell : row.getTableCells()) {
            for (XWPFParagraph para : cell.getParagraphs()) {
                List<XWPFRun> runs = para.getRuns();
                for (int i = 0; i < runs.size(); i++) {
                    XWPFRun run = runs.get(i);
                    String text = run.getText(0);
                    if (text != null && text.startsWith("#") && text.endsWith("#")) {
                        // 进行替换
                        run.setText("替换后的文本", 0);
                    }
                }
            }
        }
    }
}

4. 将替换后的Word文档保存到新文件。

FileOutputStream out = new FileOutputStream("替换后的文档.docx");
doc.write(out);
out.close();

完整代码如下：

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.List;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;

public class WordReplace {

    public static void main(String[] args) throws Exception {
        FileInputStream file = new FileInputStream("原始文档.docx");
        XWPFDocument doc = new XWPFDocument(file);

        for (XWPFParagraph para : doc.getParagraphs()) {
            List<XWPFRun> runs = para.getRuns();
            for (int i = 0; i < runs.size(); i++) {
                XWPFRun run = runs.get(i);
                String text = run.getText(0);
                if (text != null && text.startsWith("#") && text.endsWith("#")) {
                    // 进行替换
                    run.setText("替换后的文本", 0);
                }
            }
        }

        for (XWPFTable table : doc.getTables()) {
            for (XWPFTableRow row : table.getRows()) {
                for (XWPFTableCell cell : row.getTableCells()) {
                    for (XWPFParagraph para : cell.getParagraphs()) {
                        List<XWPFRun> runs = para.getRuns();
                        for (int i = 0; i < runs.size(); i++) {
                            XWPFRun run = runs.get(i);
                            String text = run.getText(0);
                            if (text != null && text.startsWith("#") && text.endsWith("#")) {
                                // 进行替换
                                run.setText("替换后的文本", 0);
                            }
                        }
                    }
                }
            }
        }

        FileOutputStream out = new FileOutputStream("替换后的文档.docx");
        doc.write(out);
        out.close();
    }
}